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Subject[036/123] sysfs: checking for NULL instead of ERR_PTR
From: Dan Carpenter <error27@gmail.com>

commit 57f9bdac2510cd7fda58e4a111d250861eb1ebeb upstream.

d_path() returns an ERR_PTR and it doesn't return NULL.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
fs/sysfs/file.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -340,7 +340,7 @@ static int sysfs_open_file(struct inode
char *p;

p = d_path(&file->f_path, last_sysfs_file, sizeof(last_sysfs_file));
- if (p)
+ if (!IS_ERR(p))
memmove(last_sysfs_file, p, strlen(p) + 1);

/* need attr_sd for attr and ops, its parent for kobj */



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